Is it possible to have a relative selection for currency conversion date and use a date KUT field?

[DAcker]

Hello experts, 

for C4C reports with currency there are always the fields "Display Currency - Conversion Date" and "Display Currency". 

For the Conversion Date I can chose between a absolute value and a relative date (today, yesterday etc.) 

Is it possible to use another date field for the conversion date? We created a KUT field with date format for the date, when it was invoiced. This should be date the used for the currency conversion. 

I seems that this is not possible in the Standard. But here the question, just to be sure I dont miss any option... 

Thanks a lot!

Best regards, Deborah